Pith Number

pith:HUYM3CDK

pith:2024:HUYM3CDKQ7GI3DQZVG7HF732SQ

not attested not anchored not stored refs pending

A computational study of algebraic coarse spaces for two-level overlapping additive Schwarz preconditioners

Alexander Heinlein, Filipe A. C. S. Alves, Hadi Hajibeygi

arxiv:2408.08187 v1 · 2024-08-15 · math.NA · cs.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUYM3CDKQ7GI3DQZVG7HF732SQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T08:55:45.705295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d30cd886a87cc8d8e19a9be72ff7a941dc6d44196a8bc5c52a7eb44a010a604

Aliases

arxiv: 2408.08187 · arxiv_version: 2408.08187v1 · doi: 10.48550/arxiv.2408.08187 · pith_short_12: HUYM3CDKQ7GI · pith_short_16: HUYM3CDKQ7GI3DQZ · pith_short_8: HUYM3CDK

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HUYM3CDKQ7GI3DQZVG7HF732SQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3d30cd886a87cc8d8e19a9be72ff7a941dc6d44196a8bc5c52a7eb44a010a604

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8162ea67d6da9dc067fe272fbf07d3444dd8b60030ddc0f9e601051e19f5024f",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-08-15T14:44:37Z",
    "title_canon_sha256": "f3d4b3a4c8a95617dda8685d31b587506971f1d11763381038b5f0823081512e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.08187",
    "kind": "arxiv",
    "version": 1
  }
}